Ball bearing retainer
By designing the ball bearing cage, the pocket diameter and steel plate thickness are increased, the collision and friction problems during thin-square ball bearings are solved, and the noise pass rate and production efficiency are significantly improved.
Patent Information
- Application Number
- CN202420200312.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-01-26
AI Technical Summary
When the thin-square ball bearing is operated, the internal space is limited, the rolling element has a small diameter and a large number, which leads to easy collision and friction, affecting rotation flexibility, feel and noise, and has a low pass rate, which seriously affects production efficiency.
A ball bearing cage is designed. By installing a bearing steel ball in the cage pocket, and radially bent curved curved plates and guide bent sides on both sides of the steel ball, the diameter of the cage pocket is greater than the bearing ball joint. The circular diameter is automatically centered by the steel ball group during assembly, the steel plate is thickened, and the spacing between the adjacent two pockets increases, increasing the strength of the cage.
It effectively avoids axial contact between the cage and the seal, significantly improves the noise pass rate, ensures the axial distance during the bearing operation, avoids collision and friction, and improves production efficiency.
Smart Images
Figure CN222526718U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a ball bearing retainer. Background Art
[0002] At present, the nominal diameter of the center circle of the pocket of the conventional deep groove ball bearing wave-type cage is equal to the pitch diameter of the bearing steel ball. The steel cage has sufficient strength and will not cause too much difficulty in bearing assembly. In addition, the internal space of the closed bearing is large, and the axial contact between the cage and the seal will not occur when the bearing is running. However, due to the limited internal space of the thin-walled ball bearing, the rolling element has a small diameter and a large number, which will cause the two to easily collide and rub when the thin-walled ball bearing is running. The feel and noise are affected when the finished product is tested for rotation flexibility, and the qualified rate is low, which seriously affects production efficiency. Therefore, we have made improvements to this and proposed a ball bearing cage. Utility Model Content
[0003] In view of the deficiencies of the prior art, the utility model provides a ball bearing cage, including a bearing cage, a cage pocket hole is provided on the bearing cage, a bearing steel ball is arranged in the cage pocket hole, radially curved arc plates are arranged on both sides of the bearing steel ball, and the side edges of the arc plates are provided with guide curved edges, and the cage pocket hole diameter is larger than the pitch circle diameter of the bearing ball group. During assembly, the cage lock mouth is automatically centered by the steel ball group, the cage steel plate is thickened, and the distance between two adjacent pocket holes is increased, which improves the strength of the cage to varying degrees; after the cage is improved, the axial distance between the two is effectively guaranteed, collision and friction are avoided, and the noise qualification rate is significantly improved.
[0004] As a preferred technical solution of the utility model, the diameter of the retainer pocket is larger than the pitch circle diameter of the bearing ball set.
[0005] As a preferred technical solution of the utility model, the bearing retainer adopts a stamped crown structure.
[0006] As a preferred technical solution of the utility model, partitions are provided between the pockets of the retaining frame.
[0007] As a preferred technical solution of the utility model, the partition is provided with a straight plate or an arc-shaped bent plate.
[0008] As a preferred technical solution of the present invention, a through hole is provided in the central portion of the bearing retainer.
[0009] As a preferred technical solution of the utility model, positioning ribs are provided at the inner edges of the through hole and the bearing retainer.
[0010] As a preferred technical solution of the utility model, the bearing steel balls are clearance-matched with the retaining frame pockets.
[0011] The utility model has the beneficial effects that the diameter of the cage pocket is larger than the pitch diameter of the bearing ball group. During assembly, the cage lock mouth is automatically centered by the steel ball group, the cage steel plate is thickened, and the distance between two adjacent pockets is increased, which improves the strength of the cage to varying degrees; after the cage is improved, the axial distance between the two is effectively guaranteed, collision and friction are avoided, and the noise qualification rate is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a three-dimensional structural diagram of the utility model;
[0013] Figure 2 This is the structural diagram of the arc plate of the utility model;
[0014] Figure 3 This is a guide bend view of the utility model;
[0015] Figure 4 This is a view of the partition of the utility model;
[0016] Figure 5 This is a view of the bearing steel ball of the utility model. DETAILED DESCRIPTION
[0017] The ball bearing cage of the utility model is implemented as follows Figure 1-5 As shown: it includes a bearing retainer 1, a retainer pocket 2 is opened on the bearing retainer 1, a bearing steel ball 3 is arranged in the retainer pocket 2, radially curved arc plates 4 are arranged on both sides of the bearing steel ball 3, and guide curved edges 6 are arranged on the side edges of the arc plates 4.
[0018] The diameter of the cage pocket 2 is larger than the pitch diameter of the bearing ball group. The bearing cage 1 adopts a stamped crown structure. A partition 7 is provided between the cage pockets 2. The partition 7 is provided with a straight plate or an arc-shaped bent plate. A through hole 8 is provided in the center of the bearing cage 1. A positioning rib 5 is provided at the inner edge of the through hole 8 and the bearing cage 1. The bearing steel ball 3 is clearance-matched with the cage pocket 2.
[0019] The bearing retainer 1 is provided with a retainer pocket 2, in which a bearing steel ball 3 is arranged, arc plates 4 are arranged on both sides of the bearing steel ball 3, and guide bends 6 are arranged on the side edges of the arc plates 4, which have an internal guiding function.
[0020] The diameter of the cage pocket 2 is larger than the pitch diameter of the bearing ball group. During assembly, the cage lock is automatically centered by the steel ball group, the cage steel plate is thickened, and the distance between the two adjacent pockets is increased, which improves the strength of the cage to varying degrees; after the cage and the sealing ring are improved, the axial distance between the two is effectively guaranteed, collision and friction are avoided, and the noise qualification rate is significantly improved; the bearing cage 1 adopts a stamped crown structure. A partition 7 is arranged between the cage pockets 2. The partition 7 is provided with a straight plate or an arc-shaped bending plate. A through hole 8 is opened in the center of the bearing cage 1. A positioning rib 5 is arranged at the inner edge of the through hole 8 and the bearing cage 1. The bearing steel ball 3 is clearance-matched with the cage pocket 2; the bearing cage 1 is made of 0Cr18Ni9, 1Cr18Ni9, 3Cr13 stainless steel.
[0021] The above embodiment is only a ball bearing retainer of a preferred specific embodiment of the utility model. Common changes and substitutions made by those skilled in the art within the technical solution of the utility model are all included in the protection scope of the utility model.
Claims
1. A ball bearing cage, comprising a bearing cage, characterized in that: The bearing retainer is provided with a retainer pocket, a bearing steel ball is arranged in the retainer pocket, radially curved arc plates are arranged on both sides of the bearing steel ball, and the side edges of the arc plates are provided with guiding curved edges. The diameter of the retainer pocket is larger than the pitch circle diameter of the bearing ball group; the bearing retainer adopts a stamped crown structure; partitions are arranged between the retainer pockets; the partitions are provided with straight plates or arc-shaped bent plates.
2. The ball bearing retainer according to claim 1, characterized in that: A through hole is formed in the center of the bearing retainer.
3. The ball bearing retainer according to claim 2, characterized in that: Positioning ribs are arranged at the inner edges of the through hole and the bearing retainer.
4. The ball bearing retainer according to claim 1, characterized in that: The bearing steel balls are clearance-matched with the retaining frame pockets.